/* Portfolio Page - Minimal White Design */
.portfolio-section {
    padding-top: 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
}

.pdf-viewer-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.pdf-display {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

#pdf-canvas {
    max-width: 100%;
    height: auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
    background: #fff;
}

/* Controls */
.pdf-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 25px;
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 50px;
}

.nav-btn {
    background: #ffffff;
    border: 1px solid #e0e0e0;
    color: #000000;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-btn:hover:not(:disabled) {
    background: #f5f5f5;
    border-color: #000000;
}

.nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.page-info {
    color: #000000;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 1px;
    min-width: 60px;
    text-align: center;
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-top: 100px;
    color: #000000;
    font-family: 'Inter', sans-serif;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
}

.spinner {
    border: 2px solid #e0e0e0;
    border-top: 2px solid #000000;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .portfolio-section {
        padding-top: 80px;
    }

    .pdf-viewer-container {
        padding: 15px;
    }

    .pdf-controls {
        gap: 15px;
        padding: 10px 20px;
    }

    .nav-btn {
        width: 32px;
        height: 32px;
    }
}